Title:
BALL CIRCULATION ASSEMBLY AND STEERING MACHINE
Document Type and Number:
WIPO Patent Application WO/2023/010967
Kind Code:
A1
Abstract:
A ball circulation assembly, comprising: a nut component (100), which comprises a through hole (101) extending in an axial direction (A), wherein an inner wall of the through hole (101) is provided with a first channel half portion (102) extending along a helical line; a worm, which extends and penetrates the through hole (101), wherein an outer wall of the worm is provided with a second channel half portion, which matches the first channel half portion (102), the first channel half portion (102) and the second channel half portion jointly form a first channel (110), and the first channel (110) extends from a first end, along the helical line, to a second end; a first extension portion (210), which comprises a first extension channel (212), wherein the first extension (210) is oriented in such a way that the first extension channel (212) is connected to a first end of the first channel (110); and a second extension portion (220), which comprises a second extension channel (222), wherein the second extension portion (220) is oriented in such a way that the second extension channel (222) is connected to the second end of the first channel (110). The second channel (120) is arranged in the nut component (100) and is positioned to be connected between the first extension channel (212) and the second extension channel (222); and an outer surface of the nut component (100) comprises a separation portion and two matching portions. Further disclosed is a steering machine comprising the ball circulation assembly.
Inventors:
JIAO ZENGCHAO (CN)
FENG MINGFEI (CN)
ZONG ZHAOMING (CN)
FENG MINGFEI (CN)
ZONG ZHAOMING (CN)
Application Number:
PCT/CN2022/095594
Publication Date:
February 09, 2023
Filing Date:
May 27, 2022
Export Citation:
Assignee:
BOSCH AUTOMOTIVE STEERING JINAN CO LTD (CN)
International Classes:
B62D5/24; B62D3/08; F16H25/22
Foreign References:
| CN113911202A | 2022-01-11 | |||
| CN215409689U | 2022-01-04 | |||
| DE102016119366A1 | 2018-04-12 | |||
| JP2004084823A | 2004-03-18 | |||
| JP2002087288A | 2002-03-27 | |||
| CN210592107U | 2020-05-22 | |||
| CN112046598A | 2020-12-08 | |||
| CN104675945A | 2015-06-03 | |||
| CN111169530A | 2020-05-19 | |||
| DE102018215408A1 | 2020-03-12 | |||
| JP2010190367A | 2010-09-02 | |||
| DE102019201933A1 | 2020-08-20 |
Attorney, Agent or Firm:
CHINA PATENT AGENT (H.K.) LTD. (CN)
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